11806189090 has 16 divisors (see below), whose sum is σ = 21489918840. Its totient is φ = 4669413760.

The previous prime is 11806189069. The next prime is 11806189127. The reversal of 11806189090 is 9098160811.

It is a happy number.

11806189090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5458402161 + 6347786929 = 73881^2 + 79673^2 .

It is a super-2 number, since 2×11806189090² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6631801 + ... + 6633580.

Almost surely, 2^11806189090 is an apocalyptic number.

11806189090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11806189090 is a deficient number, since it is larger than the sum of its proper divisors (9683729750).

11806189090 is a wasteful number, since it uses less digits than its factorization.

11806189090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13265477.

The product of its (nonzero) digits is 31104, while the sum is 43.

The spelling of 11806189090 in words is "eleven billion, eight hundred six million, one hundred eighty-nine thousand, ninety".